KOSS CORP — SC 13G/A Filings
24 SC 13G/A filings on record
This page lists all SC 13G/A filings submitted to the SEC by KOSS CORP (KOSS), sorted by most recent first. Each row links to the full filing on EdgarLookup. KOSS CORP has filed 24 SC 13G/A documents with the SEC since 1994. To view all SEC filings by KOSS CORP, see the full filings list.
All
10-K
10-K/A
10-K405
10-Q
10-Q/A
3
3/A
4
4/A
424B3
8-K
8-K/A
ARS
CORRESP
DEF 14A
DEFA14A
DEFR14A
PRE 14A
S-3
S-3/A
S-8
SC 13D
SC 13D/A
SC 13G
SC 13G/A
SD
UPLOAD
| Form | Description | Accession Number | Filed | Period |
|---|---|---|---|---|
| SC 13G/A | 13G/A KOSS CORPORATION AMDT 7 123120 | 0001126328-21-000029 | Feb 11, 2021 | — |
| SC 13G/A | 13 G/A KOSS CORPORATION ADMT 6 123119 | 0001126328-20-000030 | Feb 11, 2020 | — |
| SC 13G/A | 13 G/A KOSS CORPORATION ADMT 5 123118 | 0001126328-19-000032 | Jan 31, 2019 | — |
| SC 13G/A | KOSS CORPORATION AMDT 4 123117 | 0001126328-18-000062 | Feb 7, 2018 | — |
| SC 13G/A | 13G/A KOSS CORPORATION AMDT 3 123116 | 0001126328-17-000030 | Feb 10, 2017 | — |
| SC 13G/A | SC 13G/A KOSS CORPORATION AMEND NO. 2 - 2015 | 0001126328-16-000332 | Jan 22, 2016 | — |
| SC 13G/A | SC 13G/A KOSS CORPORATION AMEND NO. 1 - 2014 | 0001126328-15-000058 | Feb 13, 2015 | — |
| SC 13G/A | — | 0000906304-10-000333 | Feb 4, 2010 | — |
| SC 13G/A | — | 0000906304-10-000327 | Feb 3, 2010 | — |
| SC 13G/A | — | 0000906304-09-000374 | Jul 9, 2009 | — |
| SC 13G/A | — | 0000906304-09-000153 | Jan 26, 2009 | — |
| SC 13G/A | — | 0000906304-08-000133 | Jan 30, 2008 | — |
| SC 13G/A | — | 0000906304-07-000145 | Jan 22, 2007 | — |
| SC 13G/A | — | 0000906304-06-000131 | Jan 30, 2006 | — |
| SC 13G/A | SCHEDULE 13G/A | 0000898430-04-001359 | Feb 6, 2004 | — |
| SC 13G/A | SCHEDULE 13G/A | 0000898430-03-000705 | Feb 7, 2003 | — |
| SC 13G/A | 2001 SCHEDULE 13G/A - KROLL INC | 0001047469-02-001965 | Feb 12, 2002 | — |
| SC 13G/A | 2001 SCHEDULE 13G/A - KOSS CORP | 0001047469-02-001963 | Feb 12, 2002 | — |
| SC 13G/A | SCHEDULE 13G - 02-14-01 - KOSS CORPORATION | 0000315066-01-000483 | Feb 14, 2001 | — |
| SC 13G/A | SCHEDULE 13G - 02-14-00 - KOSS CORPORATION | 0000315066-00-000483 | Feb 11, 2000 | — |
| SC 13G/A | — | 0001052443-99-000008 | Feb 16, 1999 | — |
| SC 13G/A | SCHEDULE 13G - 02-01-99 - KOSS CORPORATION | 0000315066-99-000544 | Feb 12, 1999 | — |
| SC 13G/A | — | 0001052443-98-000010 | Feb 12, 1998 | — |
| SC 13G/A | SCHEDULE 13G - 2-14-95 - KOSS CORPORATION | 0000315066-95-001714 | Feb 9, 1995 | — |